const mongoose = require("mongoose");

mongoose.connect("mongodb://localhost:27017/sh2207");

mongoose.connection.on("connected", ()=>{
    console.log("数据库连接成功")
})
mongoose.connection.on("error", ()=>{
    console.log("数据库连接成功")
})
mongoose.connection.on("disconnected", ()=>{
    console.log("数据库连接断开")
})

module.exports = mongoose;